Exposure of coho salmon (Oncorhynchus lisutch) to petroleum hydrocarbons : effect on lipid metabolism and aryl hydrocarbon hydroxylase activity Public Deposited

http://ir.library.oregonstate.edu/concern/graduate_thesis_or_dissertations/w0892d56n

Descriptions

Attribute NameValues
Creator
Abstract or Summary
  • Coho salmon (Oncorhynchus kisutch) were exposed to sublethal levels of a water-soluble fraction (WSF) of Cook Inlet crude oil for periods ranging from 18 to 31 days, at four acclimation temperatures. The fatty acid composition of phospholipids extracted from muscle, gill, liver, and brain tissues, and, at three of the temperatures, the activity of the hepatic microsomal aryl hydrocarbon hydroxylase (AHH) system in the salmon, were determined. Induction of the ARE system due to exposure of the fish to the toxicant was observed in the warm acclimated (20.0 C) fish only. With minor exceptions, the fatty acid composition of phospholipids in all of the tissues analyzed, including those from the warm acclimated fish, were unaltered by exposure of the fish to the crude oil WSF. In both control and exposed fish, AHH activity was greater in fish acclimated to 7.8 C than to 20.0 C. The phospholipids from both exposed and control cold acclimated fish contained a higher percentage of polyunsaturated fatty acids than the phospholipids from the corresponding warm acclimated fish. The studies reported here indicate that exposure of coho salmon (O. kisutch) to sublethal levels of petroleum hydrocarbons does not appreciably alter the fatty acid composition of tissue phospholipids or affect the normal change in fatty acid composition associated with a change in acclimation temperature. The data obtained are insufficient to permit any conclusion regarding the possibility of an interaction between the MFO system and the metabolsim of polyunsaturated fatty acids in oil exposed salmon.
Resource Type
Date Available
Date Copyright
Date Issued
Degree Level
Degree Name
Degree Field
Degree Grantor
Commencement Year
Advisor
Academic Affiliation
Non-Academic Affiliation
Subject
Rights Statement
Language
Digitization Specifications
  • File scanned at 300 ppi (Monochrome) using ScandAll PRO 1.8.1 on a Fi-6670 in PDF format. CVista PdfCompressor 4.0 was used for pdf compression and textual OCR.
Replaces
Additional Information
  • description.provenance : Submitted by Tamera Ontko (toscannerosu@gmail.com) on 2011-07-01T16:29:42Z No. of bitstreams: 1 CaldaroneElaineMarie1981.pdf: 1141655 bytes, checksum: 380c1f9628f3d27b44ee5291c248e039 (MD5)
  • description.provenance : Made available in DSpace on 2011-08-05T23:11:16Z (GMT). No. of bitstreams: 1 CaldaroneElaineMarie1981.pdf: 1141655 bytes, checksum: 380c1f9628f3d27b44ee5291c248e039 (MD5) Previous issue date: 1980-04-09
  • description.provenance : Approved for entry into archive by Anna Opoien(anna.opoien@oregonstate.edu) on 2011-08-05T23:11:16Z (GMT) No. of bitstreams: 1 CaldaroneElaineMarie1981.pdf: 1141655 bytes, checksum: 380c1f9628f3d27b44ee5291c248e039 (MD5)
  • description.provenance : Approved for entry into archive by Anna Opoien(anna.opoien@oregonstate.edu) on 2011-08-05T22:24:29Z (GMT) No. of bitstreams: 1 CaldaroneElaineMarie1981.pdf: 1141655 bytes, checksum: 380c1f9628f3d27b44ee5291c248e039 (MD5)

Relationships

In Administrative Set:
Last modified: 08/08/2017

Downloadable Content

Download PDF
Citations:

EndNote | Zotero | Mendeley

Items